Merge branch 'linux-2.6' into for-2.6.24

3 files changed, 53 insertions, 6 deletions

diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index ac18bd8e273f..63144ad476f6 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -501,7 +501,7 @@ niagara_tlb_fixup:
 	cmp	%g1, SUN4V_CHIP_NIAGARA1
 	be,pt	%xcc, niagara_patch
 	 cmp	%g1, SUN4V_CHIP_NIAGARA2
-	be,pt	%xcc, niagara_patch
+	be,pt	%xcc, niagara2_patch
 	 nop
 
 	call	generic_patch_copyops
@@ -512,6 +512,15 @@ niagara_tlb_fixup:
 	 nop
 
 	ba,a,pt	%xcc, 80f
+niagara2_patch:
+	call	niagara2_patch_copyops
+	 nop
+	call	niagara_patch_bzero
+	 nop
+	call	niagara2_patch_pageops
+	 nop
+
+	ba,a,pt	%xcc, 80f
 
 niagara_patch:
 	call	niagara_patch_copyops
@@ -706,12 +715,13 @@ setup_trap_table:
 
 	membar	#Sync
 
+	BRANCH_IF_SUN4V(o2, 1f)
+
 	/* Kill PROM timer */
 	sethi	%hi(0x80000000), %o2
 	sllx	%o2, 32, %o2
 	wr	%o2, 0, %tick_cmpr
 
-	BRANCH_IF_SUN4V(o2, 1f)
 	BRANCH_IF_ANY_CHEETAH(o2, o3, 1f)
 
 	ba,pt	%xcc, 2f
diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c
index 95059c2ec414..9f22e4ff6015 100644
--- a/arch/sparc64/kernel/mdesc.c
+++ b/arch/sparc64/kernel/mdesc.c
@@ -9,6 +9,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
+#include <linux/miscdevice.h>
 
 #include <asm/hypervisor.h>
 #include <asm/mdesc.h>
@@ -836,6 +837,43 @@ void __devinit mdesc_fill_in_cpu_data(cpumask_t mask)
 	mdesc_release(hp);
 }
 
+static ssize_t mdesc_read(struct file *file, char __user *buf,
+			  size_t len, loff_t *offp)
+{
+	struct mdesc_handle *hp = mdesc_grab();
+	int err;
+
+	if (!hp)
+		return -ENODEV;
+
+	err = hp->handle_size;
+	if (len < hp->handle_size)
+		err = -EMSGSIZE;
+	else if (copy_to_user(buf, &hp->mdesc, hp->handle_size))
+		err = -EFAULT;
+	mdesc_release(hp);
+
+	return err;
+}
+
+static const struct file_operations mdesc_fops = {
+	.read	= mdesc_read,
+	.owner	= THIS_MODULE,
+};
+
+static struct miscdevice mdesc_misc = {
+	.minor	= MISC_DYNAMIC_MINOR,
+	.name	= "mdesc",
+	.fops	= &mdesc_fops,
+};
+
+static int __init mdesc_misc_init(void)
+{
+	return misc_register(&mdesc_misc);
+}
+
+__initcall(mdesc_misc_init);
+
 void __init sun4v_mdesc_init(void)
 {
 	struct mdesc_handle *hp;
diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index 9448595f9063..9533a25ce5d2 100644
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -95,14 +95,13 @@ spitfire_startup:
 	membar		#Sync
 
 startup_continue:
+	mov		%o0, %l0
+	BRANCH_IF_SUN4V(g1, niagara_lock_tlb)
+
 	sethi		%hi(0x80000000), %g2
 	sllx		%g2, 32, %g2
 	wr		%g2, 0, %tick_cmpr
 
-	mov		%o0, %l0
-
-	BRANCH_IF_SUN4V(g1, niagara_lock_tlb)
-
 	/* Call OBP by hand to lock KERNBASE into i/d tlbs.
 	 * We lock 2 consequetive entries if we are 'bigkernel'.
 	 */